Fujifilm Corporation

Nissan Motor Company Limited

Ube Industries, Inc.

Tanabe Chemical Industrial Inc.

Masashi Ono

Masahiro Takata

Atsushi Tanaka

Masayuki Suzuki

Takahiro Yoshino

Tsutomu Sasaki

Makoto Kikuchi

Masahiro Iriyama

Yuuzou Kageyama

Kenji Suzuki

Yoshihiko Kanemitsu

Fumihiko Mochizuki

Shunsuke Kitajima

Takanobu Mouri

Hideki Maruyama

Takuya Ishizuka

Masayuki Shimizu

Takeharu Tani

Masayuki Tomita

Hideki Yasuda

Toshio Takahata

Hiroshi Arita

Tetsushi Miyata

Tomohiko Takahashi

Kakuzou Kaneko

Tomohiro Ariyoshi

Toshio Tanabe

Yuzo Kageyama

Ryouichi Ootaki

Kazuki Ochiai

Takashi Toyama

Yuuichi Iriya

Mitsuyo Maeda

Ritsuo Satou

Hiroshi Takada

Yukiyo Yamada

Yayoi Okumura

Akito Suhara

Tatsuya Chiba

Tomoya Mori

Junso Ichiba

Hirokimi Koyama

Shimata Tanabe

Toshiya Ideue

Kazuhiko Takasugi

Toshihide Sato

Kazuo Higuchi

Shinichi Kobayashi

Keisuke Hamano

Toshiya Kouno

There is provided a photodetector element having a photoelectric conversion layer containing an aggregate of semiconductor quantum dots QD1 that contain a metal atom and containing a ligand L1 that is coordinated to the semiconductor quantum dot QD1, and a hole transport layer containing an aggregate of semiconductor quantum dots QD2 that contains a metal atom and containing a ligand L2 that is coordinated to the semiconductor quantum dot QD2, the hole transport layer being arranged on the photoelectric conversion layer, in which a band gap Eg2 of the semiconductor quantum dot QD2 is larger than a band gap Eg1 of the semiconductor quantum dot QD1, and a difference between the band gap Eg2 of the semiconductor quantum dot QD2 and the band gap Eg1 of the semiconductor quantum dot QD1 is 0.10 eV or more. There is also provided an image sensor including the photodetector element.

Photodetector element and image sensor

A photodetector element has a photoelectric conversion layer containing aggregates of semiconductor quantum dots QD1 that contain a metal atom and containing a ligand L1 that is coordinated to the semiconductor quantum dot QD1, and a hole transport layer containing aggregates of semiconductor quantum dots QD2 that contains a metal atom and containing a ligand L2 that is coordinated to the semiconductor quantum dot QD2, the hole transport layer being arranged on the photoelectric conversion layer, where the ligand L2 includes a ligand represented by any one of Formulae (A) to (C).

A photodetector element contains aggregates of PbS quantum dots and a ligand that is coordinated to the PbS quantum dot, in which the PbS quantum dot contains more than 0 mol and 1.40 mol or less of a Pb atom with respect to 1 mol of a S atom.

Photodetector element, manufacturing method for photodetector element, image sensor, dispersion liquid, and semiconductor film

A photodetector element includes a photoelectric conversion layer that contains aggregates of semiconductor quantum dots between a first electrode layer and a second electrode layer, where the first electrode layer is provided on a light incident side with respect to the second electrode layer, and a wavelength λ (nm) of target light to be detected by the photodetector element and an optical path length L(nm) of light having the wavelength λ, from a surface of the second electrode layer on a side of the photoelectric conversion layer to a surface of the photoelectric conversion layer on a side of the first electrode layer satisfy a relationship of the following Expression (1). m is an integer of 0 or more.0.05+/2≤/λ≤0.35+/2  (1)

Photodetector element, manufacturing method for photodetector element, and image sensor

An internal-combustion engine includes a variable compression ratio mechanism for changing a mechanical compression ratio, and a variable valve timing mechanism for changing the valve timing of an intake valve. When acceleration is demanded, a target compression ratio is set to a lower compression ratio than the target value in a normal condition, and the valve timing is set to the advance angle side. Since the allowable combustion pressure decreases in a prescribed intermediate compression ratio region, if an actual compression ratio exists in the prescribed intermediate compression ratio region in the course of a compression ratio change accompanying acceleration, the variable compression ratio mechanism restricts the intake pressure by increasing a degree of opening of a wastegate valve or reducing a degree of opening of a throttle valve, for example.

Internal-combustion engine control method and control device

Provided is a curable composition including oxide particles that include at least indium and tin, and to which a ligand having a hydrocarbon group and a binding site to the oxide particles is bonded; and a polymerizable compound, in which a content of the oxide particles in the composition is 18 mass % or more with respect to a total solid content of the composition; and a cured product of the curable composition or a lens unit including the cured product.

Curable composition, cured product, and lens unit

Provided are semiconductor particles including a Group 12-16 semiconductor including a Group 12 element and a Group 16 element, a Group 13-15 semiconductor including a Group 13 element and a Group 15 element, or a Group 14 semiconductor including a Group 14 element, the semiconductor particles having a plasma frequency of 1.7&#xd7;10rad/s to 4.7&#xd7;10rad/s and a maximum length of 1 nm to 2,000 nm; and a dispersion, a film, an optical filter, a building member, or a radiant cooling device, in all of which the semiconductor particles are used.

Semiconductor particles, dispersion, film, optical filter, building member, and radiant cooling device

An object of the present invention is to provide a core shell particle exhibiting high luminous efficacy, a method of producing the core shell particle, and a film containing the core shell particle. The core shell particle of the present invention includes a core which contains a Group III element and a Group V element; a first shell which covers at least a part of a surface of the core; and a second shell which contains a Group II element and covers at least a part of the first shell, in which the molar ratio of the Group II element contained in the entirety of the core shell particle to the Group III element contained in the core, which is acquired using X-ray photoelectron spectroscopy, is 2.7 or greater.

Core shell particle, method of producing core shell particle, and film

An object of the present invention is to provide a multicore shell particle having excellent photostability; a nanoparticle dispersion liquid containing the multicore shell particle; and a film obtained by using the multicore shell particle. A multicore shell particle of the present invention includes a plurality of semiconductor cores; and a semiconductor shell A which contains the plurality of semiconductor cores.

Multicore-shell particle, nanoparticle dispersion liquid, and film

A semiconductor film includes a cluster of semiconductor quantum dots each having a metal atom and ligands coordinating to respective semiconductor quantum dots, and the semiconductor quantum dots have an average shortest inter-dot distance of less than 0.45 nm. A solar cell, a light-emitting diode, a thin film transistor, and an electronic device include the semiconductor film.

Semiconductor film, solar cell, light-emitting diode, thin film transistor, and electronic device

An object of the present invention is to provide a core shell particle having high luminous efficacy and excellent durability; a method of producing the same; and a film obtained by using the core shell particle. The core shell particle of the present invention includes: a core which contains a Group III element and a Group V element; a first shell which covers at least a part of a surface of the core; and a second shell which covers at least a part of the first shell, in which at least a part of a surface of the core shell particle contains a metal-containing organic compound containing a metal element and a hydrocarbon group.

An object of the present invention is to provide a semiconductor nanoparticle-containing dispersion liquid having high initial luminous efficacy and exhibiting excellent moisture resistance; and a film produced using the dispersion liquid. The semiconductor nanoparticle-containing dispersion liquid of the present invention contains semiconductor nanoparticles from which zinc, sulfur, and indium are detected by X-ray photoelectron spectroscopy; and acrylate or methacrylate, in which a molar ratio of zinc to indium in the semiconductor nanoparticles which is acquired by the X-ray photoelectron spectroscopy satisfies Expression (1a).2.25&#x3c;Zn/In&#x3c;9&#x2003;&#x2003;(1a)

Semiconductor nanoparticle-containing dispersion liquid and film

A semiconductor film, including: an assembly of semiconductor quantum dots containing a metal atom; and a ligand that is coordinated to the semiconductor quantum dots and that is represented by the following Formula (A): wherein, in Formula (A), Xrepresents NH, S, or O; each of Xand Xindependently represents NH, SH, or OH; and each of n and m independently represents an integer from 1 to 3.

Semiconductor film, method of producing semiconductor film, solar cell, light-emitting diode, thin film transistor, and electronic device

Provided are core-shell particles that have high luminous efficiency and are useful as quantum dots, a method for producing the same, and a film produced using the core-shell particles. The core-shell particles of the invention are core-shell particles having a core containing a Group III element and a Group V element; and a shell covering at least a portion of the surface of the core and containing a Group II element and a Group VI element, in which the proportion of the peak intensity ratio of the Group II element with respect to the peak intensity ratio of the Group III element as measured by X-ray photoelectron spectroscopy analysis is 0.25 or higher.

Core-shell particles, method for producing core-shell particles, and film

An object of the present invention is to provide a core shell particle having high luminous efficacy and excellent durability; a method of producing the same; and a film formed of the core shell particle. The core shell particle of the present invention includes: a core which contains a Group III element and a Group V element; a first shell which covers at least a part of a surface of the core; and a second shell which covers at least a part of the first shell, in which the core shell particle includes a protective layer containing a metal oxide that covers at least a part of the second shell, and at least a part of a surface of the protective layer includes coordination molecules.

Core-shell particle, method of producing core shell particle, and film

Growing community of inventors

Kanagawa, Japan

Masashi Ono